An organisation's participation is likely to be encouraged if it is contacted by a known colleague, rather than approached 'cold'.  

The JLA website includes an example of the information email sent to contacts of the Alcohol-Related Liver Disease PSP.

Steering Groups should be prepared to approach and utilise their established contacts and networks, as well as reaching out to new ones.  The JLA website shows an example press release from the Diabetes and Pregnancy PSP

The Occupational Therapy PSP produced a wide range of resources to help people to promote the PSP.